Ariston Primo 40 h [4/10] Repairing and maintenance
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Ariston Primo 40 h [4/10] Repairing and maintenance

Ariston Primo 40 h [4/10] Repairing and maintenance
= Connect the hot water pipe (D) onto the outlet
of the water heater marked in red.
= The water-in and water-out connection pipes
should be able to bear water pressure of 6.5 bar
and high temperature of 80
0
C.
= Do not screw the safety valve too hard to avoid
damaging it.
= If the mains pressure of water is close to the
setting of the safety valve, please install a
pressure reducing valve (F) on the water supply
pipe end away from the water heater (see Fig. 8).
= If a valve is installed on the supply pipe, keep
the valve open normally.
= A slight drip from the drain outlet of the safety
valve is normal during heating, which means that
the pressure in the heater is released.
= Under normal operation, water should flow out
from the outlet. If no water goes out, please
contact the local Service Agency (see Fig. 9).
8
9
Open the inlet valve for mains water supply, then open hot water (outlet) valve until the flow-out
rate of the water is close to the water supplying flow-rate, which means the water heater is fully
filled with water. Turn off the outlet valve and keep the inlet valve normally open.
Caution : Before switching the heater on, make sure that the tank is full of water and that there
is no any water leakage in whole system.
5
The things that should be done after installation
6
How to use the electric water heater
6.1 Set the water temperature
= The Manufacture will set the water temperature
regulator to the highest temperature before
shipping. Customers can adjust the setting by knob
'M' on demand.
6.2 Start-up
= Switch the heater on. The indicator lamp lights
up, which means the heater is in heating process.
Later when the light goes out, means that the water
has reached setting temperature.
6.3 Useful information
= If no hot water comes out of the hot water tap
after the heater has been used for a certain period
of time, please check the water and power supply
as well as their connections according to the
relevant paragraphs of this instruction, before
contacting the local Technical Service Agency.
= The water heater should not be operated without
a pressure relief valve.
= The valve and valve relief pipe must not be
sealed or blocked.
10
7
Repairing and maintenance
All maintenance works must be carried out by qualified personnel.
Before contacting local Service Agency, please make sure that the problem is not due to temporary
cut-off of the water or power supply, etc.
If the power cannot be supplied to the heater, the dual thermal protecting switch may be activated
and the mains power supply is shut down. In this case, contact the local Service Agency.
If the light goes out, but water is still heating, usually the lamp is damaged.
7.1 Replacement of parts
Before carrying out any maintenance operation, unplug the appliance from the power supply for safety.
For maintenance of electric elements such as heating element, thermostat and thermal switch, please
follow the procedures as below to remove the cover :
5 6

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Q How to use the electric water heater Connect the hot water pipe D onto the outlet of the water heater marked in red 6 1 Set the water temperature The water in and water out connection pipes The Manufacture will set the water temperature should be able to bear water pressure of 6 5 bar regulator to the highest temperature before and high temperature of 80 C shipping Customers can adjust the setting by knob Do not screw the safety valve too hard to avoid M on demand damaging it 6 2 Start up If the mains pressure of water is close to the a Switch the heater on The indicator lamp lights pressure reducing valve F on the water supply up which means the heater is in heating process setting of the safety valve please install Later when the light goes out means that the water pipe end away from the water heater see Fig 8 has reached setting temperature 6 3 Useful information If a valve is installed on the supply pipe keep If no hot water comes out of the hot water tap the valve open normally afterthe heater has been used for a certain period A slight drip from the drain outlet of the safety of time please check the water and power supply as valve is normal during heating which means that well relevant the pressure in the heater is released as their connections paragraphs of this according instruction to the before contacting the local Technical Service Agency Under normal operation water should flow out The water heater should not be operated without from the outlet If no water goes out please a pressure relief valve The valve and valve relief pipe must not be contact the local Service Agency see Fig 9 sealed or blocked Repairing and maintenance All maintenance works must be carried out by qualified personnel Before contacting local Service Agency please make sure that the problem is not due to temporary cut off of the water or power supply etc If the power cannot be supplied to the heater the dual thermal protecting switch may be activated The things that should be done after installatio and the mains power supply is shut down In this case contact the local Service Agency If the light goes out but water is still heating usually the lamp is damaged Open the inlet valve for mains water supply then open hot water outlet valve until the flow out rate of the water is close to the water supplying flow rate which means the water heater is fully 7 1 Replacement of parts filled with water Turn off the outlet valve and keep the inlet valve normally open Before carrying out any maintenance operation unplug the appliance from the power supply for safety Caution Before switching the heater on make sure that the tank is full of water and that there For maintenance of electric elements such as heating element thermostat and thermal switch please is no any water leakage in whole system follow the procedures as below to remove the cover 5 6

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